.ab1out {
    background-color: #f1f1f1;
    padding: 75px 0;
}

.ab1 {
    overflow: hidden;
    height: 450px;
    background-color: #fff;
}

.ab1 .pic {
    float: left;
    width: 50%;
    height: 100%;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.ab1 .r {
    width: 50%;
    height: 100%;
}

.ab1r {
    padding: 90px 50px 10px 50px;
}

.ab1r h3 {
    color: #039be3;
    font-size: 20px;
    line-height: 30px;
    font-weight: bold;
    max-height: 60px;
    overflow: hidden;
}

.ab1r .txt {
    font-size: 16px;
    color: #666;
    line-height: 26px;
    margin-top: 30px;
    max-height: 234px;
    overflow: hidden;
}

.ab2 {
    padding: 90px 0 30px;
}

.ov {
    overflow: hidden;
}

.lefthalf {
    float: left;
    width: 50%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.ab2 .lefthalf .con {
    padding-right: 50px;
    padding-left: 10px;
}

.ab2 .con h3 {
    font-size: 20px;
    color: #039be3;
    line-height: 40px;
    height: 40px;
}

.ab2 .con .txt {
    font-size: 16px;
    color: #666;
    line-height: 26px;
    margin-top: 22px;
    height: 260px;
    overflow: hidden;
}

.righthalf {
    float: right;
    width: 50%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.ab3 {
    height: 400px;
    overflow: hidden;
}

.ab3 .lefthalf {
    background: url(../images/about22_1.jpg) left no-repeat;
}

.ab3 .righthalf {
    background: url(../images/about3_1.jpg) left no-repeat;
}

@media (max-width: 768px) {
    .ab1 {
        height: auto;
        padding-top: 50px;
    }

    .ab1 .pic {
        float: none;
        width: 600px;
        margin: 0 auto;
        height: 450px;
    }

    .ab1 .r {
        float: none;
        width: 600px;
        margin: 0 auto;
    }

    .ab1r {
        padding: 50px 0 70px;
    }

    .ab1r h3 {
        font-size: 30px;
        line-height: 44px;
        max-height: none;
    }

    .ab1r .txt {
        font-size: 26px;
        line-height: 36px;
        margin-top: 30px;
        max-height: none;
    }

    .ab2 {
        padding: 60px 0 60px;
    }

    .ab2 .lefthalf {
        float: none;
        width: 100%;
    }

    .ab2 .lefthalf .con {
        padding: 30px;
    }

    .ab2 .con h3 {
        font-size: 30px;
        line-height: 50px;
        height: 50px;
    }

    .ab2 .con .txt {
        font-size: 26px;
        line-height: 36px;
        height: auto;
    }

    .ab2 .righthalf {
        float: none;
        width: 100%;
    }

    .ab2 .righthalf .con {
        padding: 30px;
    }

    .ab3 {
        height: auto;
    }

    .ab3 .lefthalf {
        float: none;
        width: 100%;
        height: 400px;
    }

    .ab3 .righthalf {
        float: none;
        width: 100%;
        height: 400px;
    }

}